Class which stores some additional information on V0 vertices. More...

#include <V0ValidationVertex.h>

Inheritance diagram for V0ValidationVertex:

Public Member Functions
	V0ValidationVertex ()
	Default Constructor.

	V0ValidationVertex (const std::pair< const Belle2::Track , const Belle2::TrackFitResult > &trackPairPositive, const std::pair< const Belle2::Track , const Belle2::TrackFitResult > &trackPairNegative, double vertexX, double vertexY, double vertexZ)
	Constructor equivalent to the constructor of the V0 mdst dataobjects.

	V0ValidationVertex (const std::pair< const Belle2::Track , const Belle2::TrackFitResult > &trackPairPositive, const std::pair< const Belle2::Track , const Belle2::TrackFitResult > &trackPairNegative, const ROOT::Math::XYZVector &fittedVertexPosition, const TMatrixDSym &fittedVertexPositionCovariance, const double &momentum, const double &invariantMass, const double &chi2)
	Constructor to initialize a V0 with additional information which is only available on reconstruction level.

ROOT::Math::XYZVector	getVertexPosition () const
	Getter for the reconstructed vertex position. Aliases getFittedVertexPosition for backwards compatibility.

TMatrixDSym	getVertexPositionCovariance () const
	Getter for the reconstructed vertex position covariance.

float	getFittedMomentum () const
	Getter for the reconstructed momentum.

float	getFittedInvariantMass () const
	Getter for the reconstructed invariant mass.

float	getVertexChi2 () const
	Getter for the chi2 of the vertex fit.

std::pair< Track , Track >	getTracks () const
	Get pair of yhe Tracks, that are part of the V0 particle.

std::pair< short, short >	getTrackIndices () const
	Get indices of the Tracks, that are part of the V0 particle.

std::pair< TrackFitResult , TrackFitResult >	getTrackFitResults () const
	Get pair of the TrackFitResults, that are part of the V0 particle.

std::pair< short, short >	getTrackFitResultIndices () const
	Get indices of the TrackFitResults, that are part of the V0 particle.

Const::ParticleType	getV0Hypothesis () const
	Get the hypothesis under which the V0 particle was created.

double	getFittedVertexX () const
	Get the X coordinate of the fitted vertex.

double	getFittedVertexY () const
	Get the Y coordinate of the fitted vertex.

double	getFittedVertexZ () const
	Get the Z coordinate of the fitted vertex.

ROOT::Math::XYZVector	getFittedVertexPosition () const
	Get the fitted vertex position.

void	addRelationTo (const RelationsInterface< BASE > *object, float weight=1.0, const std::string &namedRelation="") const
	Add a relation from this object to another object (with caching).

void	addRelationTo (const TObject *object, float weight=1.0, const std::string &namedRelation="") const
	Add a relation from this object to another object (no caching, can be quite slow).

void	copyRelations (const RelationsInterface< BASE > *sourceObj)
	Copies all relations of sourceObj (pointing from or to sourceObj) to this object (including weights).

template<class TO >
RelationVector< TO >	getRelationsTo (const std::string &name="", const std::string &namedRelation="") const
	Get the relations that point from this object to another store array.

template<class FROM >
RelationVector< FROM >	getRelationsFrom (const std::string &name="", const std::string &namedRelation="") const
	Get the relations that point from another store array to this object.

template<class T >
RelationVector< T >	getRelationsWith (const std::string &name="", const std::string &namedRelation="") const
	Get the relations between this object and another store array.

template<class TO >
TO *	getRelatedTo (const std::string &name="", const std::string &namedRelation="") const
	Get the object to which this object has a relation.

template<class FROM >
FROM *	getRelatedFrom (const std::string &name="", const std::string &namedRelation="") const
	Get the object from which this object has a relation.

template<class T >
T *	getRelated (const std::string &name="", const std::string &namedRelation="") const
	Get the object to or from which this object has a relation.

template<class TO >
std::pair< TO *, float >	getRelatedToWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing to an array.

template<class FROM >
std::pair< FROM *, float >	getRelatedFromWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing from an array.

template<class T >
std::pair< T *, float >	getRelatedWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing from/to an array.

virtual std::string	getName () const
	Return a short name that describes this object, e.g.

virtual std::string	getInfoHTML () const
	Return a short summary of this object's contents in HTML format.

std::string	getInfo () const
	Return a short summary of this object's contents in raw text format.

std::string	getArrayName () const
	Get name of array this object is stored in, or "" if not found.

int	getArrayIndex () const
	Returns this object's array index (in StoreArray), or -1 if not found.

Protected Member Functions
TClonesArray *	getArrayPointer () const
	Returns the pointer to the raw DataStore array holding this object (protected since these arrays are easy to misuse).

Private Member Functions
	ClassDef (V0ValidationVertex, 3)
	Dataobjects for the reconstruction level validation of V0 reconstruction.

Private Attributes
TMatrixDSym	m_fittedVertexPositionCovariance
	vertex position covariance

float	m_fittedMomentum
	reconstructed momentum

float	m_fittedInvariantMass
	reconstructed invariant mass

float	m_chi2
	reconstructed chi2

short	m_trackIndexPositive
	Indicates which positively charged track was used for this V0.

short	m_trackIndexNegative
	Indicates which negatively charged track was used for this V0.

short	m_trackFitResultIndexPositive
	Points to the new TrackFitResult of the positive Track.

short	m_trackFitResultIndexNegative
	Points to the new TrackFitResult of the positive Track.

Double32_t	m_fittedVertexX
	The X coordinate of the fitted vertex.

Double32_t	m_fittedVertexY
	The Y coordinate of the fitted vertex.

Double32_t	m_fittedVertexZ
	The Z coordinate of the fitted vertex.

DataStore::StoreEntry *	m_cacheDataStoreEntry
	Cache of the data store entry to which this object belongs.

int	m_cacheArrayIndex
	Cache of the index in the TClonesArray to which this object belongs.

Detailed Description

Class which stores some additional information on V0 vertices.

The information is created by RAVE and lost when the V0 is stored. For a reconstruction level validation, this additional information has to be stored. To enable the usage of this class, use the validation flag of the V0FinderModule.

Definition at line 25 of file V0ValidationVertex.h.

Constructor & Destructor Documentation

◆ V0ValidationVertex() [1/3]

V0ValidationVertex ( )

inline

Default Constructor.

Definition at line 29 of file V0ValidationVertex.h.

                         :
      V0(),
      m_fittedMomentum(0),
      m_fittedInvariantMass(0),
      m_chi2(0)
    {}

◆ V0ValidationVertex() [2/3]

V0ValidationVertex	(	const std::pair< const Belle2::Track , const Belle2::TrackFitResult > &	trackPairPositive,
		const std::pair< const Belle2::Track , const Belle2::TrackFitResult > &	trackPairNegative,
		double	vertexX,
		double	vertexY,
		double	vertexZ
	)

inline

Constructor equivalent to the constructor of the V0 mdst dataobjects.

Parameters

trackPairPositive	Positive charged Belle2::Track and TrackFitResult from the V0.
trackPairNegative	Negative charged Belle2::Track and TrackFitResult from the V0.
vertexX	The x coordinate of the fitted vertex position.
vertexY	The y coordinate of the fitted vertex position.
vertexZ	The z coordinate of the fitted vertex position.

Definition at line 44 of file V0ValidationVertex.h.

                                                                       :
      V0(trackPairPositive, trackPairNegative, vertexX, vertexY, vertexZ),
      m_fittedMomentum(0),
      m_fittedInvariantMass(0),
      m_chi2(0)
    {}

◆ V0ValidationVertex() [3/3]

V0ValidationVertex	(	const std::pair< const Belle2::Track , const Belle2::TrackFitResult > &	trackPairPositive,
		const std::pair< const Belle2::Track , const Belle2::TrackFitResult > &	trackPairNegative,
		const ROOT::Math::XYZVector &	fittedVertexPosition,
		const TMatrixDSym &	fittedVertexPositionCovariance,
		const double &	momentum,
		const double &	invariantMass,
		const double &	chi2
	)

inline

Constructor to initialize a V0 with additional information which is only available on reconstruction level.

Parameters

trackPairPositive	Positive charged Belle2::Track and TrackFitResult from the V0.
trackPairNegative	Negative charged Belle2::Track and TrackFitResult from the V0.
fittedVertexPosition	Fitted vertex position from RAVE.
fittedVertexPositionCovariance	Covariance of the vertex position from RAVE.
momentum	Reconstructed momentum from RAVE.
invariantMass	Reconstructed invariant mass from RAVE.
chi2	Chi2 of vertex fit from RAVE.

Definition at line 63 of file V0ValidationVertex.h.

                                           :
      V0(trackPairPositive, trackPairNegative, fittedVertexPosition.X(), fittedVertexPosition.Y(), fittedVertexPosition.Z()),
      m_fittedVertexPositionCovariance(fittedVertexPositionCovariance),
      m_fittedMomentum(momentum),
      m_fittedInvariantMass(invariantMass),
      m_chi2(chi2)
    {}

Member Function Documentation

◆ addRelationTo() [1/2]

void addRelationTo	(	const RelationsInterface< BASE > *	object,
		float	weight = `1.0`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Add a relation from this object to another object (with caching).

Parameters

object	The object to which the relation should point.
weight	The weight of the relation.
namedRelation	Additional name for the relation, or "" for the default naming

Definition at line 142 of file RelationsObject.h.

    {
      if (object)
        DataStore::Instance().addRelation(this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                          object, object->m_cacheDataStoreEntry, object->m_cacheArrayIndex, weight, namedRelation);
    }

◆ addRelationTo() [2/2]

void addRelationTo	(	const TObject *	object,
		float	weight = `1.0`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Add a relation from this object to another object (no caching, can be quite slow).

Parameters

object	The object to which the relation should point.
weight	The weight of the relation.
namedRelation	Additional name for the relation, or "" for the default naming

Definition at line 155 of file RelationsObject.h.

    {
      StoreEntry* toEntry = nullptr;
      int toIndex = -1;
      DataStore::Instance().addRelation(this, m_cacheDataStoreEntry, m_cacheArrayIndex, object, toEntry, toIndex, weight, namedRelation);
    }

◆ copyRelations()

void copyRelations ( const RelationsInterface< BASE > * sourceObj )

inlineinherited

Copies all relations of sourceObj (pointing from or to sourceObj) to this object (including weights).

Useful if you want to make a complete copy of a StoreArray object to make modifications to it, but retain all information on linked objects.

Note: this only works if sourceObj inherits from the same base (e.g. RelationsObject), and only for related objects that also inherit from the same base.

Definition at line 170 of file RelationsObject.h.

    {
      if (!sourceObj)
        return;
      auto fromRels = sourceObj->getRelationsFrom<RelationsInterface<BASE>>("ALL");
      for (unsigned int iRel = 0; iRel < fromRels.size(); iRel++) {
        fromRels.object(iRel)->addRelationTo(this, fromRels.weight(iRel));
      }
 
      auto toRels = sourceObj->getRelationsTo<RelationsInterface<BASE>>("ALL");
      for (unsigned int iRel = 0; iRel < toRels.size(); iRel++) {
        this->addRelationTo(toRels.object(iRel), toRels.weight(iRel));
      }
    }

◆ getArrayIndex()

int getArrayIndex ( ) const

inlineinherited

Returns this object's array index (in StoreArray), or -1 if not found.

Definition at line 385 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      return m_cacheArrayIndex;
    }

◆ getArrayName()

std::string getArrayName ( ) const

inlineinherited

Get name of array this object is stored in, or "" if not found.

Definition at line 377 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      return m_cacheDataStoreEntry ? m_cacheDataStoreEntry->name : "";
    }

◆ getArrayPointer()

TClonesArray * getArrayPointer ( ) const

inlineprotectedinherited

Returns the pointer to the raw DataStore array holding this object (protected since these arrays are easy to misuse).

Definition at line 418 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      if (!m_cacheDataStoreEntry)
        return nullptr;
      return m_cacheDataStoreEntry->getPtrAsArray();
    }

◆ getFittedInvariantMass()

float getFittedInvariantMass ( ) const

inline

Getter for the reconstructed invariant mass.

Definition at line 87 of file V0ValidationVertex.h.

87{ return m_fittedInvariantMass; }

◆ getFittedMomentum()

float getFittedMomentum ( ) const

inline

Getter for the reconstructed momentum.

Definition at line 84 of file V0ValidationVertex.h.

84{ return m_fittedMomentum; }

◆ getFittedVertexPosition()

ROOT::Math::XYZVector getFittedVertexPosition ( ) const

inlineinherited

Get the fitted vertex position.

Definition at line 84 of file V0.h.

84{ return ROOT::Math::XYZVector(m_fittedVertexX, m_fittedVertexY, m_fittedVertexZ); }

Belle2::V0::m_fittedVertexZ

Double32_t m_fittedVertexZ

The Z coordinate of the fitted vertex.

Definition: V0.h:106

Belle2::V0::m_fittedVertexY

Double32_t m_fittedVertexY

The Y coordinate of the fitted vertex.

Definition: V0.h:103

Belle2::V0::m_fittedVertexX

Double32_t m_fittedVertexX

The X coordinate of the fitted vertex.

Definition: V0.h:100

◆ getFittedVertexX()

double getFittedVertexX ( ) const

inlineinherited

Get the X coordinate of the fitted vertex.

Definition at line 75 of file V0.h.

75{ return m_fittedVertexX; }

◆ getFittedVertexY()

double getFittedVertexY ( ) const

inlineinherited

Get the Y coordinate of the fitted vertex.

Definition at line 78 of file V0.h.

78{ return m_fittedVertexY; }

◆ getFittedVertexZ()

double getFittedVertexZ ( ) const

inlineinherited

Get the Z coordinate of the fitted vertex.

Definition at line 81 of file V0.h.

81{ return m_fittedVertexZ; }

◆ getInfo()

std::string getInfo ( ) const

inlineinherited

Return a short summary of this object's contents in raw text format.

Returns the contents of getInfoHTML() while translating line-breaks etc.

Note: : You don't need to implement this function (it's not virtual), getInfoHTML() is enough.

Definition at line 370 of file RelationsObject.h.

    {
      return _RelationsInterfaceImpl::htmlToPlainText(getInfoHTML());
    }

◆ getInfoHTML()

virtual std::string getInfoHTML ( ) const

inlinevirtualinherited

Return a short summary of this object's contents in HTML format.

Reimplement this in your own class to provide useful output for display or debugging purposes. For example, you might do something like:

std::stringstream out;
out << "<b>PDG</b>: " << m_pdg << "<br>";
out << "<b>Covariance Matrix</b>: " << HTML::getString(getCovariance5()) << "<br>";
return out.str();

See also: Particle::getInfoHTML() for a more complex example.; HTML for some utility functions.; Use getInfo() to get a raw text version of this output.

Reimplemented in Particle, Cluster, MCParticle, PIDLikelihood, SoftwareTriggerResult, Track, TrackFitResult, TRGSummary, and RecoTrack.

Definition at line 362 of file RelationsObject.h.

362{ return ""; }

◆ getName()

virtual std::string getName ( ) const

inlinevirtualinherited

Return a short name that describes this object, e.g.

pi+ for an MCParticle.

Reimplemented in Particle, MCParticle, and SpacePoint.

Definition at line 344 of file RelationsObject.h.

344{ return ""; }

◆ getRelated()

T * getRelated	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the object to or from which this object has a relation.

Template Parameters

T	The class of objects to or from which the relation points.

Parameters

name	The name of the store array to or from which the relation points. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: The first related object or a null pointer.

Definition at line 278 of file RelationsObject.h.

    {
      return static_cast<T*>(DataStore::Instance().getRelationWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                             T::Class(), name, namedRelation).object);
    }

◆ getRelatedFrom()

FROM * getRelatedFrom	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the object from which this object has a relation.

Template Parameters

FROM	The class of objects from which the relation points.

Parameters

name	The name of the store array from which the relation points. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: The first related object or a null pointer.

Definition at line 263 of file RelationsObject.h.

    {
      return static_cast<FROM*>(DataStore::Instance().getRelationWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry,
                                m_cacheArrayIndex, FROM::Class(), name, namedRelation).object);
    }

◆ getRelatedFromWithWeight()

std::pair< FROM *, float > getRelatedFromWithWeight	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get first related object & weight of relation pointing from an array.

Template Parameters

FROM	The class of objects from which the relation points.

Parameters

name	The name of the store array from which the relation points. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 314 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  FROM::Class(), name, namedRelation);
      return std::make_pair(static_cast<FROM*>(entry.object), entry.weight);
    }

◆ getRelatedTo()

TO * getRelatedTo	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the object to which this object has a relation.

Template Parameters

TO	The class of objects to which the relation points.

Parameters

name	The name of the store array to which the relation points. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: The first related object or a null pointer.

Definition at line 248 of file RelationsObject.h.

    {
      return static_cast<TO*>(DataStore::Instance().getRelationWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                              TO::Class(), name, namedRelation).object);
    }

◆ getRelatedToWithWeight()

std::pair< TO *, float > getRelatedToWithWeight	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get first related object & weight of relation pointing to an array.

Template Parameters

TO	The class of objects to which the relation points.

Parameters

name	The name of the store array to which the relation points. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 297 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  TO::Class(), name, namedRelation);
      return std::make_pair(static_cast<TO*>(entry.object), entry.weight);
    }

◆ getRelatedWithWeight()

std::pair< T *, float > getRelatedWithWeight	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get first related object & weight of relation pointing from/to an array.

Template Parameters

T	The class of objects to or from which the relation points.

Parameters

name	The name of the store array to or from which the relation points. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 331 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  T::Class(), name, namedRelation);
      return std::make_pair(static_cast<T*>(entry.object), entry.weight);
    }

◆ getRelationsFrom()

RelationVector< FROM > getRelationsFrom	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the relations that point from another store array to this object.

Template Parameters

FROM	The class of objects from which the relations point.

Parameters

name	The name of the store array from which the relations point. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: A vector of relations.

Definition at line 212 of file RelationsObject.h.

    {
      return RelationVector<FROM>(DataStore::Instance().getRelationsWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry,
                                  m_cacheArrayIndex, FROM::Class(), name, namedRelation));
    }

◆ getRelationsTo()

RelationVector< TO > getRelationsTo	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the relations that point from this object to another store array.

Template Parameters

TO	The class of objects to which the relations point.

Parameters

name	The name of the store array to which the relations point. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: A vector of relations.

Definition at line 197 of file RelationsObject.h.

    {
      return RelationVector<TO>(DataStore::Instance().getRelationsWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry,
                                m_cacheArrayIndex, TO::Class(), name, namedRelation));
    }

◆ getRelationsWith()

RelationVector< T > getRelationsWith	(	const std::string &	name = `""`,
		const std::string &	namedRelation = `""`
	)		const

inlineinherited

Get the relations between this object and another store array.

Relations in both directions are returned.

Template Parameters

T	The class of objects to or from which the relations point.

Parameters

name	The name of the store array to or from which the relations point. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns: A vector of relations.

Definition at line 230 of file RelationsObject.h.

    {
      return RelationVector<T>(DataStore::Instance().getRelationsWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry,
                               m_cacheArrayIndex, T::Class(), name, namedRelation));
    }

◆ getTrackFitResultIndices()

std::pair< short, short > getTrackFitResultIndices ( ) const

inlineinherited

Get indices of the TrackFitResults, that are part of the V0 particle.

Definition at line 65 of file V0.h.

    {
      return std::make_pair(m_trackFitResultIndexPositive, m_trackFitResultIndexNegative);
    }

◆ getTrackFitResults()

std::pair< TrackFitResult *, TrackFitResult * > getTrackFitResults ( ) const

inlineinherited

Get pair of the TrackFitResults, that are part of the V0 particle.

Definition at line 58 of file V0.h.

    {
      StoreArray<TrackFitResult> trackFitResults;
      return std::make_pair(trackFitResults[m_trackFitResultIndexPositive], trackFitResults[m_trackFitResultIndexNegative]);
    }

◆ getTrackIndices()

std::pair< short, short > getTrackIndices ( ) const

inlineinherited

Get indices of the Tracks, that are part of the V0 particle.

Definition at line 52 of file V0.h.

    {
      return std::make_pair(m_trackIndexPositive, m_trackIndexNegative);
    }

◆ getTracks()

std::pair< Track *, Track * > getTracks ( ) const

inlineinherited

Get pair of yhe Tracks, that are part of the V0 particle.

Definition at line 45 of file V0.h.

    {
      StoreArray<Track> tracks;
      return std::make_pair(tracks[m_trackIndexPositive], tracks[m_trackIndexNegative]);
    }

◆ getV0Hypothesis()

Const::ParticleType getV0Hypothesis ( ) const

inherited

Get the hypothesis under which the V0 particle was created.

This does not use an MC information, but just checks the particle type in the corresponding TrackFitResults.

Definition at line 35 of file V0.cc.

{
  StoreArray<TrackFitResult> trackFitResults{};
  const auto posParticleType = trackFitResults[m_trackFitResultIndexPositive]->getParticleType();
  const auto negParticleType = trackFitResults[m_trackFitResultIndexNegative]->getParticleType();
 
  if ((posParticleType == Const::pion) && (negParticleType == Const::pion)) {
    return Const::Kshort;
  }
  if ((posParticleType == Const::proton) && (negParticleType == Const::pion)) {
    return Const::Lambda;
  }
  if ((posParticleType == Const::pion) && (negParticleType == Const::proton)) {
    return Const::antiLambda;
  }
  if ((posParticleType == Const::electron) && (negParticleType == Const::electron)) {
    return Const::photon;
  }
  return Const::unspecifiedParticle;
}

◆ getVertexChi2()

float getVertexChi2 ( ) const

inline

Getter for the chi2 of the vertex fit.

Definition at line 90 of file V0ValidationVertex.h.

90{ return m_chi2; }

◆ getVertexPosition()

ROOT::Math::XYZVector getVertexPosition ( ) const

inline

Getter for the reconstructed vertex position. Aliases getFittedVertexPosition for backwards compatibility.

Definition at line 78 of file V0ValidationVertex.h.

78{ return getFittedVertexPosition(); }

Belle2::V0::getFittedVertexPosition

ROOT::Math::XYZVector getFittedVertexPosition() const

Get the fitted vertex position.

Definition: V0.h:84

◆ getVertexPositionCovariance()

TMatrixDSym getVertexPositionCovariance ( ) const

inline

Getter for the reconstructed vertex position covariance.

Definition at line 81 of file V0ValidationVertex.h.

81{ return m_fittedVertexPositionCovariance; }

Member Data Documentation

◆ m_cacheArrayIndex

int m_cacheArrayIndex

mutableprivateinherited

Cache of the index in the TClonesArray to which this object belongs.

Definition at line 432 of file RelationsObject.h.

◆ m_cacheDataStoreEntry

DataStore::StoreEntry* m_cacheDataStoreEntry

mutableprivateinherited

Cache of the data store entry to which this object belongs.

Definition at line 429 of file RelationsObject.h.

◆ m_chi2

float m_chi2

private

reconstructed chi2

Definition at line 96 of file V0ValidationVertex.h.

◆ m_fittedInvariantMass

float m_fittedInvariantMass

private

reconstructed invariant mass

Definition at line 95 of file V0ValidationVertex.h.

◆ m_fittedMomentum

float m_fittedMomentum

private

reconstructed momentum

Definition at line 94 of file V0ValidationVertex.h.

◆ m_fittedVertexPositionCovariance

TMatrixDSym m_fittedVertexPositionCovariance

private

vertex position covariance

Definition at line 93 of file V0ValidationVertex.h.

◆ m_fittedVertexX

Double32_t m_fittedVertexX

privateinherited

The X coordinate of the fitted vertex.

Definition at line 100 of file V0.h.

◆ m_fittedVertexY

Double32_t m_fittedVertexY

privateinherited

The Y coordinate of the fitted vertex.

Definition at line 103 of file V0.h.

◆ m_fittedVertexZ

Double32_t m_fittedVertexZ

privateinherited

The Z coordinate of the fitted vertex.

Definition at line 106 of file V0.h.

◆ m_trackFitResultIndexNegative

short m_trackFitResultIndexNegative

privateinherited

Points to the new TrackFitResult of the positive Track.

Definition at line 97 of file V0.h.

◆ m_trackFitResultIndexPositive

short m_trackFitResultIndexPositive

privateinherited

Points to the new TrackFitResult of the positive Track.

Definition at line 94 of file V0.h.

◆ m_trackIndexNegative

short m_trackIndexNegative

privateinherited

Indicates which negatively charged track was used for this V0.

Definition at line 91 of file V0.h.

◆ m_trackIndexPositive

short m_trackIndexPositive

privateinherited

Indicates which positively charged track was used for this V0.

Definition at line 88 of file V0.h.

The documentation for this class was generated from the following file:

tracking/dataobjects/include/V0ValidationVertex.h

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ V0ValidationVertex() [1/3]

◆ V0ValidationVertex() [2/3]

◆ V0ValidationVertex() [3/3]

Member Function Documentation

◆ addRelationTo() [1/2]

◆ addRelationTo() [2/2]

◆ copyRelations()

◆ getArrayIndex()

◆ getArrayName()

◆ getArrayPointer()

◆ getFittedInvariantMass()

◆ getFittedMomentum()

◆ getFittedVertexPosition()

◆ getFittedVertexX()

◆ getFittedVertexY()

◆ getFittedVertexZ()

◆ getInfo()

◆ getInfoHTML()

◆ getName()

◆ getRelated()

◆ getRelatedFrom()

◆ getRelatedFromWithWeight()

◆ getRelatedTo()

◆ getRelatedToWithWeight()

◆ getRelatedWithWeight()

◆ getRelationsFrom()

◆ getRelationsTo()

◆ getRelationsWith()

◆ getTrackFitResultIndices()

◆ getTrackFitResults()

◆ getTrackIndices()

◆ getTracks()

◆ getV0Hypothesis()

◆ getVertexChi2()

◆ getVertexPosition()

◆ getVertexPositionCovariance()

Member Data Documentation

◆ m_cacheArrayIndex

◆ m_cacheDataStoreEntry

◆ m_chi2

◆ m_fittedInvariantMass

◆ m_fittedMomentum

◆ m_fittedVertexPositionCovariance

◆ m_fittedVertexX

◆ m_fittedVertexY

◆ m_fittedVertexZ

◆ m_trackFitResultIndexNegative

◆ m_trackFitResultIndexPositive

◆ m_trackIndexNegative

◆ m_trackIndexPositive